Russian Federation http://www.fao.org/docrep/w6240e/w6240e16.htm Geography and population With a total area of over 17 million km2, the Russian Federation is the largest country in the world. It covers the eastern part of Europe and the northern part of Asia. It has access to the Arctic Ocean in the north, the Pacific Ocean in the east, the Black Sea and the Caspian Sea in the southwest, and the Baltic Sea in the northwest. It borders 14 countries: Korea DPR, China, Mongolia, Kazakhstan, Azerbaijan, Georgia, Ukraine, Belarus, Latvia, Estonia, Finland, Norway and, with the province (oblast) of Kaliningrad, Poland and Lithuania. TABLE 1 Basic statistics and population Physical areas: Area of the country 1994 1 707 540 ha 000 Cultivable area 1994 686 900 ha 000 Cultivated area 1994 116 900 ha 000 - annual crops 1994 114 900 ha 000 - permanent crops 1994 2 000 000 ha 1996 148 126 inhab. Population: Total population 000 Population density 1996 9 inhab./km2 Rural population 1996 24 % 1996 12 % of which: - men 1994 62 % - women 1994 38 % Urban population 1994 84 % Rural population 1994 33 % Economically active population engaged in agriculture Water supply coverage: The Soviet Union came to an end in late 1991 and the Russian Federation emerged as one of the 15 newly independent former Soviet republics. Administratively, the Russian Federation is divided into 89 units, which are autonomous and self-governing members of the Russian Federation. Each unit has a separate agreement with the Russian Federation and, usually, a differing degree of autonomy. The Russian Federation is also divided into 11 economic regions, plus Kaliningrad, presently considered as the twelfth region and which previously formed one economic region with the Soviet republics of Lithuania, Latvia and Estonia. The Russian Federation is exceptionally rich in natural resources. It is a major producer of most types of minerals and for many of them it is the world's leading producer and exporter. In particular, the Russian Federation has vast reserves of fuels and metal ores, including significant deposits of gold-bearing ore. The agricultural production potential is distributed extremely unevenly and is limited mainly to the south of the European part and small areas on the southern fringes of Siberia as well as areas in the far east region. This distribution reflects the zonal diversification of the natural environment, from ice deserts in the north, through tundra, coniferous woods (taiga), mixed woods, to the fragments of steppes and semideserts in the south. The Russian Federation is formed of three vast, low plains: the east European plain and the west Siberian plain, divided by the Ural mountains, and the Caspian plain in the south. In the northern part of the lowlands there are young glacial formations and swamps, especially in the west Siberian plain. South of the lowlands there is a belt of loess with fertile black soils. In the European part, there are poor semi-desert and desert soils south of the loess belt. In central and southern Siberia and in the far east, mountains of medium height predominate, with a peak of 4 506 m above sea level (Bielukha in Altay). The highest mountains are situated in the Caucasus (up to 5 642 m above sea level). See map of the Russian Federation TABLE 2 Water: sources and use Renewable water resources: Average precipitation Internal renewable water mm/yr 10 057 km3/yr 4 km3/yr resources Total (actual) renewable water 589 312.70 1997 resources 4 km3/yr 498.24 Dependency ratio 1997 4.1 % Total (actual) renewable water 1996 30 368 m3/yr resources per inhabitant Total dam capacity 1992 360 106 m3 000 Water withdrawal: - agricultural 1994 15 300 106 m3/yr - domestic 1994 14 300 106 m3/yr - industrial 1994 47 500 106 m3/yr Total water withdrawal 77 100 106 m3/yr per inhabitant as % of total (actual) 1994 518 m3/yr 1.7 % 1992 7 430 106 renewable water resources Other water withdrawal m3/yr Wastewater - Non-conventional sources of water: Wastewater: - produced wastewater 1990 33 880 106 m3/yr - treated wastewater 1990 5 080 106 m3/yr - re-used treated wastewater - 106 m3/yr Agricultural drainage water - 106 m3/yr Desalinated water - 106 m3/yr Russian statistics consider the area of lands belonging to all kinds of agricultural farms as an equivalent to cultivable land. In 1994, this area amounted to almost 687 million ha, which is 40% of the total area of the country. The cultivated area was estimated at almost 117 million ha, including almost 115 million ha of annual crops and 2 million ha of permanent crops. Beginning in late 1990, a set of laws, decrees and resolutions opened the way for land reform in the Russian Federation. This legislation established the right to private ownership of land, restructured sovkhoz (state farms) and kolkhoz (collective farms), and laid the legal basis for the establishment and operation of private family farms. However, in 1995, less than 5% of the agricultural land was occupied by family farms (Figure 1). The total population is about 148 million (1996), of which 24% is rural. The population growth was low in the 1980s, falling to 0.6% in 1994. The average population density is about 9 inhabitants/km2. The most densely populated area is the central region, where the capital Moscow is located, with 62 inhabitants/km2, followed by Kaliningrad with 61 inhabitants/km2. The least densely populated regions are eastern Siberia and the far east with 2 and 1 inhabitants/km2 respectively. About 76% of the total population is urban and it is estimated that about 74% of the population lives in cities and large towns. TABLE 3 Irrigation and drainage Irrigation potential 1990 29 000 000 Irrigation: ha 1. Full or partial control 1990 irrigation: equipped area - surface irrigation 6 124 ha 000 1990 245 ha 000 - sprinkler irrigation 1990 5 879 ha 000 - micro-irrigation 1990 % of area irrigated from 0 ha - % - % - % 79 % - ha - ha 5 158 ha groundwater % of area irrigated from surface water % of area irrigated from non-conventional sources % of equipped area actually 1994 irrigated 2. Equipped wetland and inland valley bottoms (i.v.b.) 3. Spate irrigation Total irrigation (1+2+3) 1994 000 - as % of cultivated area 4.4 % - increase over last 10 years 198594 - power irrigated area as % of minus % 11 - % Large-scale schemes - ha Medium-scale schemes - ha Small-scale schemes - ha Total number of households - irrigated area Full or partial control irrigation schemes: in irrigation Irrigated crops: Total irrigated grain - t - % 4 095 ha production as % of total grain production Harvested crops under 1994 irrigation 000 - permanent crops: total 1994 0 ha - annual crops: total 1994 4 095 ha 000 . fodder crops 1994 2 553 ha 000 . cereals and pulses 1994 1 217 ha 000 . potatoes and 1994 208 vegetables 000 . industrial plants (mainly 1994 117 sugar beet) 000 ha ha Drainage - Environment: Drained area 1994 5 027 ha 000 - drained area in full or 1990 partial control irrigated 1 286 ha 000 areas - drained area in - ha - ha 3 238 ha equipped wetland and i.v.b. - other drained area - area with subsurface drains 1990 000 - area with surface drains 1990 4 161 ha 000 Drained area as % of cultivated area - % Power drained area as % of - % Area salinized by irrigation - ha Population affected by water- - inhabitants total drained area borne diseases The largest city is Moscow with 8.8 million inhabitants, followed by Saint Petersburg with 4.9 million inhabitants and 11 cities of 1-2 million inhabitants. In 1996, agriculture employed 12% of the economically active population. In 1994, women made up 51% of the total labour force. In 1994, 38% of the total labour force was engaged in agriculture, down from 42% in 1980. About 11% of the total female labour force and 18% of the total male labour force is engaged in agriculture. In 1993, agriculture accounted for 16% of GDP. Inflation reached 880% in 1993, 320% in 1994 and 150% in 1995. Climate and water resources Climate Seven climatic zones can be distinguished within the Russian Federation. Their main features are presented in the table below. In large regions, temperature is a major constraint on cropping. Climatic zones in the Russian Federation Climate % of Region Temperatures type (ฐC) area of warmest coldest country Polar month 5% far north month 0 Subpolar 10% north 10 Moderately 50% half of country, 20 -20 16 -10 to - cool with continental features increasing towards east Moderately cool, 2% the coast near Japan 16 maritime Moderately warm 18% Moscow region 16 to 20 (continental) and 0 to 16 near the Baltic Sea (transitional) Moderately 10% at the shore of 20 -10 warm, the Sea of Azov, semi-dry in the Volga region and in the southern fringes of Siberia Moderately warm, dry 5% northeastern foot 20 to 25 of Caucasus up 0 to 10 to the Volga mouth Precipitation in the Russian Federation ranges from less than 200 mm/year at the mouth of the Volga River in the southwest of the country, in the central part of the far east (Yakutsk), and on the Arctic Ocean coast east of the mouth of the Lena River; up to 1 000 mm in the mountains of the far east. The annual precipitation ranges from 400 to 500 mm in most areas of the European part and western Siberia, and from 300 to 400 mm in central and eastern Siberia. The average annual precipitation for the country as a whole is 589 mm. River basins and surface water resources Most of the freshwater resources of the Russian Federation are contained in the permafrost which covers the north of the European part and western Siberia, all central and eastern Siberia and almost all the far east region. These resources, as well as the glaciers in the Arctic islands, in the Ural mountains and in the mountains of southern Siberia, are of no practical use. It is only possible to use the resources of rivers, lakes and groundwater. There are 120 000 rivers over 10 km long. Their total length within the Russian Federation equals 2.3 million km, their total discharge to the sea is estimated at almost 4 202 km3/year and to other countries at 20.4 km3/year. About 12.2 million km2, or 71% of the total area of the country, drain towards the north into the Arctic Ocean; 2.4 million km2, or 14%, drain towards the east into the Pacific Ocean; and 1.6 million km2, or 10%, drain towards the south into the Caspian Sea. The remaining 5% drain towards the southwest into the Black Sea and the Sea of Azov and towards the west into the Baltic Sea. Of the total annual RSWR, estimated at 4 222.24 km3, 185.54 km3 come from neighbouring countries, the remaining 4 036.7 km3 being generated inside the country (Figure 2). The rivers of the Russian Federation freeze for from one month in the southwest between the Caspian and the Black Sea, up to 8 months and longer in the northern part of Siberia and the far east region. Renewable Surface Water Resources (RSWR) by major river basin Name Major of river region Area of Inter basin nal Inflow l within total Rus. RS The RS Fed. WR WR Russi 1000 1000 km3/ km an Tota Outflow from: km3/ to: km2 km2 year 3/yr year 358 358 148. 148. White Fed. Arctic Ocean: Severn North - aya ern 0 0 Sea Dvina Pechor North a ern Ob Ural, W.Sib 322 322 129. - 0 2 129. Barents 0 Sea 2 364. 38. Kazakhsta 402. Kara Sea 990 330 0 0n 0 eria Yenise Siberi y 2 605. 25. Mongolia 580 180 630. Kara Sea 0 0 Pyasin Easter 182 182 82.0 - 82.0 Kara Sea - 532. Laptev a a 2 0 n Siberi a Lena E.Sibe ria, 2 2 532. 470 470 0 0 Sea F.East Khatan Easter 422 422 88.0 ga - n 88.0 Laptev Sea Siberi a Olenek Far 219 219 34.0 - East Indigirk Far 34.0 Laptev Sea 360 360 55.0 - 55.0 East a East Siberia Sea Kolyma Far 647 647 126. East - 0 126. East 0 Siberia Sea Other 2 rivers 2 872. 660 660 Subtota 13 l 12 - 0 872. 0 3 63. Subtotal 210 150 035. 0 3 Subtotal 098. 0 0 Pacific Ocean: Amur E.Sibe ria, 1 780 225. 10 Mongolia, 325. Sea of 855 0 0.0 China 0 Okhotsk F.East Kamch Far atka 56 56 33.0 - 33.0 Pacific 191 191 53.0 - 53.0 Bering East Anadyr Far East Other Sea 1 rivers 1 290. 412 412 Subtota l 3 - 0 2 601. 10 Subtotal 514 439 0 0.0 290. 0 701. Subtotal 0 Caspia n Sea: Volga Volga 1 360 Ural Ural 1 230. 360 - 0 270 110 5.0 230. Caspian 0 Sea - 5.0 Kazakhst an Other 160 160 20.0 - 20.0 rivers Subtota 1 l 1 255. 0.0 Subtotal 790 630 0 255. Subtotal 0 Black/B altic: Dnepr Centr 558 135 8.2 - 8.2 Belarus al Don N.Cau 422 400 34.3 2.7 Ukraine c., 37.0 Black Sea C.Tch e. Kuban N.Cau 58 58 13.0 - casus Wester Centr 13.0 Black Sea 88 8 7.2 - 7.2 Belarus n Dvina al Neva North 281 220 66.0 16. Finland 82.0 Baltic ern Pregel Kalini 0 15 12 1.0 2.0 Lithuania, 3.0 Baltic ngrad Nemun Kalini as Poland 98 Sea 2 1.0 0.8 Lith, Belar, 1.84 Baltic ngrad Other Sea 4 Poland 23 Sea 21 15.0 1.0 Estonia/La 16.0 Black/Bal rivers tvia/other Subtota l TOTAL RUSSI 1 856 145. 22. 543 20 7 17 54 4 18 057 075 036. 5.5 AN 7 4 tic/other 168. Subtotal 24 4 22 TOTAL 2.24 RUSSIA N FEDER FEDERA ATION TION Groundwater resources The renewable groundwater resources are estimated at 788 km3/year. This figure, however, does not include resources in the form of inland ice, glaciers and pergelisol (permafrost). For the regions of western and eastern Siberia alone, the quantity of ice of the arctic islands is estimated at 5 000 km3 and that of the mountain glaciers at 170 km3. The resources in the form of pergelisol are even larger. The overlap between surface water and groundwater resources has been estimated at 512 km3/year. Water resources distribution Water resources in the Russian Federation are very unevenly distributed in relation to the population. The European part, where 80% of the total population lives, has 360 km3 of surface water resources, which is about 8% of the total river runoff, and 23 km3 of groundwater resources, which is 10% of the total renewable annual groundwater resources. In the Terek basin draining into the Caspian Sea in the southwest (northern Caucasus region) and in the Western Dvina basin in the west (central region), the annual river discharge is about 2 0003 000 m3 per inhabitant, while in the Siberian and far east basins it reaches 120 000-190 000 m3 per inhabitant. The water resources in the densely populated Povolze (Volga region) with its rich soils and in the black soils region (central Tchernozem) in the European part are estimated at around 2 000 m3/inhabitant per year. The huge distances between the Siberian and European basins make it practically impossible to transfer water from Siberia to Europe. Transfer projects were considered in the past but encountered several problems, including environmental ones. International agreements During the Soviet period, an agreement concerning the use of water of the Amur River was concluded with China. Renegotiated and modified since 1991, the latest agreement was signed in 1996. There are also agreements with other neighbours (Poland, Finland). These are general agreements, fixing the borders, including texts on crime issues, fishery, the prevention of pollution in river courses, etc. There have been no new international agreements on water sharing with the other countries of the FSU, and the inter-republic arrangements from the Soviet period are still in force. Lakes and dams There are about two million fresh- and saltwater lakes in the Russian Federation. The largest saltwater lake is the Caspian Sea, surrounded by the Russian Federation, Kazakhstan, Turkmenistan, Iran and Azerbaijan. The largest freshwater lake is Lake Baikal, located entirely within the Russian Federation in the southeast of eastern Siberia. Dams have been constructed on most large rivers in the Russian Federation, mainly for electrical energy production, but also for irrigation. There are 330 large reservoirs in use at present, with a capacity of more than 200 million m3 each. Their total capacity is 360 km3. There are about 3 000 medium-sized reservoirs. The gross theoretical hydropower potential is estimated at 2 900 000 GWh/year and the economically feasible potential is estimated at 852 000 Gwh/yea. The hydropower installed capacity is estimated at 40 GW. Water withdrawal and wastewater In 1982, the water withdrawal was 97.8 km3, while in 1994 it had dropped to 77.1 km3 (Figure 3). This reduction in water consumption, which concerns industrial and irrigation water withdrawal, has been related to the difficult economic situation in the Russian Federation, which worsened in 1990. Of the total water withdrawal of 77.1 km3 in 1994 for domestic, agricultural and industrial purposes, almost 20% was used for irrigation (Figure 4). Only a small quantity of wastewater under-goes treatment. In 1990, the quantity of produced wastewater was estimated at about 33.9 km3, of which only 5.1 km3, or 15%, was partly or fully treated. Pollution in most industrial centres has reached dangerous levels and rivers have been severely polluted. The country has a long history of serious environmental accidents, especially in the fuel and chemical industries. Irrigation and drainage development Larger scale irrigation and drainage works started at the beginning of the eighteenth century. The main goal of the water works was not the development of agriculture, but to use the water to generate power for the mines and steelworks of the southern Urals, and to drain areas near the then capital, Saint Petersburg. However, the damming up of water in the neighbourhood of the Urals also enabled the development of irrigation, while the drainage works turned some of the swamps into cultivable land. During the nineteenth century, irrigation developed slowly, mainly outside the territory of today's Russian Federation. In 1894, the first government land improvement institution was established, called the Department of Land Improvement, and water legislation was introduced in 1902. In 1916, about 214 000 ha of irrigated land and 890 000 ha of drained land were used for agriculture within the territory of the present Russian Federation. A sudden acceleration in drainage and irrigation work took place between 1920 and 1931, in connection with the great electrification programme (GOELRO). Initially, electrification always had priority over irrigation and drainage. Only in the 1950s, during the construction of the Volga cascade reservoirs, did irrigation become as important as hydro-electricity in water development design. In 1967, the irrigated area was 1.62 million ha, which was eight times the irrigated area of 1916, while the drained area of 1.64 million ha was almost twice that of 1916. By the end of the 1980s, every year, up to 200 000 ha of newly irrigated areas and 160 000 ha of newly drained areas were given for agricultural use. However, the scale of the negative effects resulting from the drying up of swamps and from the salinization of irrigated areas was increasing. The rhythm of development of irrigation and drainage work slowed down at the beginning of the 1990s. Irrigation development Based on climate and soil conditions, it is estimated that 1520% of the cultivable area needs irrigation in the moderately warm dry semi-desert zone, 5-8% in the moderately warm semi-dry steppe zone, 2-5% in the moderately warm semi-dry forested steppe zone, and 1-2% in the moderately warm forest zone. Figures for irrigation potential are estimated at almost 29 million ha under permanent irrigation. Other sources give a potential of more than 74 million ha of complementary irrigation. In 1990, irrigation covered 6.12 million ha. In 1994, however, it had fallen to 5.16 million ha, which was equal to about 4.4% of the cultivated area (Figure 5). One reason for the decrease has been the economic recession. The sprinkler systems (accounting for almost 96% of the area equipped for irrigation in 1990) are overused, and there is no maintenance and operation system. This progressively results in the complete destruction and subse-quent abandonment of the schemes. Another reason might be that in the past the statistics were overestimated; the figures for more recent years seem to be more reliable. The largest irrigation development has taken place in the north Caucasian and Volga regions. Irrigation was undertaken mainly on huge sovkhoz and, to a smaller extent, on kolkhoz. Water fees were formally introduced in 1982, but the charge was quite insignificant and never actually collected. Until 1996, there existed no organizational forms of water administration for the newly created farms. Most of the land under irrigation is commanded by reservoirs, and open canals convey the water to the irrigation schemes. The largest canals are: Saratovski, Donski, Magistral, Great Stavropolski, Tersko-Kumski and Kumo-Manycki. Within the schemes, underground pipes convey the water to the emitters (rain guns). Sprinkler irrigation is the most widely used technique (96% of the area), surface irrigation being used on the remainder (Figure 6). In 1990, only 21% of the irrigated land was equipped with a drainage system. In 1994, irrigated crops covered almost 4.1 million ha, equal to 79% of the equipped area. Fodder represented the largest irrigated crop area with almost 2.6 million ha, 62% of the total. It was followed by cereals and pulses (Figure 7). Yields of irrigated crops are higher than those of rainfed crops. Irrigated maize yields are about 2.7 t/ha compared with 1.7 t/ha for rainfed maize. For barley, the respective figures are 2.25 and 1.65 t/ha. Drainage development In 1990, the drained area was 7.4 million ha, of which almost 44% was equipped with subsurface drainage systems (Figure 8). However, in 1994 the drained area had dropped to about 5 million ha. This fall was due either to the breakdown of the infrastructure because of overexploitation without proper maintenance, or to the theft of pipes or the destruction of drains (Figure 9). In 1994, crops were grown on 2.45 million ha of drained land, the major crops being fodder crops followed by cereals (Figure 10). Yields of drained crops are somewhat lower than those of rainfed crops. This might be explained by the fact that drained land is already of marginal quality. Soils are very poor with a low pH and are not really suitable for cultivation. Another reason for the low yields might be the advanced state of degradation of large parts of the drained land. In 1994, about 25.6 million ha were esti-mated to be excessively humid and marshy areas needing drainage. Over 15 million ha were estimated to be salinized and 24.3 million ha to have saline soils (solontchak). Institutional environment Under the Soviet Union, the Ministry of Water Administration (Minvodkhoz) func-tioned at the level of the Soviet Union, and the Ministry of Land Improvement at the Russian Federation level. After the ending of the Soviet Union, both ministries were dissolved. The 89 administrative units of the Russian Federation are now entitled to develop their own water administration policy and establish suitable organs. At federation level, two ministries are responsible for water administration: - The Ministry of Nature Protection, responsible for water resources protection and water quality; - The Ministry of Agriculture, whose activity during recent years has concentrated on structural transformations in the agricultural sector. Irrigation and drainage activities are the responsibility of the Russian Water Committee (Roskomvod), reporting to the Ministry of Agriculture, and also of joint stock companies, carrying out irrigation and drainage works, subordinate to the ministry. The State Hydrological Institute in Saint Petersburg is an independent unit, reporting directly to the government. It focuses not only on scientific research and estimation of water resources, but also prepares plans for water resources utilization and supervises their execution with regard to resources protection. The institutes of the Russian Academy of Sciences involved in soil and water research programmes are: the Institute of Water Resources (Institut Vodnych Problemov RAN) and the Institute of Geography (Institut Geografii RAN). Irrigation and drainage techniques, land cultivation within improved areas and similar problems are the concern of the scientific institutions reporting to the Academy of Agricultural Sciences. The main information centre concerning water resources and their utilization is the `Vodinform' Agency in Moscow. Trends in water resources management After a period of rapid irrigation development, there was a slowdown and the area equipped for irrigation even decreased by 16% between 1990 and 1994. Even faster was the process of degradation of irrigation equipment. During the same period the drained area decreased by 22%. However, in this case it can be assumed that the official data from 1990 were overstated and that the actual drop was a little slower. The declining trend persisted in the period 1994-96. During this period, there was practically no new irrigation or drainage development and part of the formerly cultivated lands was excluded from use. The reasons have been the general difficult situation in Russian agriculture and the low yields on irrigated and drained lands. Large irrigated and drained areas are used for growing unprofitable crops like fodder crops, grain and potatoes. On irrigated areas, crop yields are higher than on rainfed land, but the difference is not always significant. On drained areas, yields are often even lower than those of rainfed crops. During the last few years, there has been a decrease in crop yields on irrigated and drained areas. One of the reasons for this has been the rise of the Caspian Sea level. In the Povolzhe region (Volga), this has caused groundwater levels to rise and the flooding of fields. This process has affected 719 000 ha of irrigated land and 563 000 ha of drained land in the districts of Astrakhan, Volgograd, Saratov and Samara. The causes of the rise of the Caspian Sea level have not yet been explained. Though water management policies can be decided by the 89 administrative units themselves, most of them have not yet prepared their future programmes. The exception is Kalmykia, located between the mouth of the Volga River and the Caucasus mountains. This is one of the richest parts of the Russian Federation and large irrigation projects have been planned for the period 1998-2003, to be irrigated mostly from groundwater. The Volga River is the river worst affected by pollution, as it receives 45% of all the sewage water of the Russian Federation. However, due to the recession, industrial activity has decreased in recent years, resulting in less sewage water. Main sources of information The most complete information on the present state of irrigation and drainage in the Russian Federation is available in statistical yearbooks in Russian (which contain more information than the English versions) and in the publications: Melioratsia i Vodnoe Chozaystvo (Drainage and Water Management) and Vodnye Resursy (Water Resources), published by the Russian Academy of Sciences in cooperation with the Ministry of Agriculture, Publishing House: Agropromizdat. Kopytny, L.M. 1996. Water resources of Siberia (Vodnyye resursy Sibirii). Scholar Geography (Geografia v shkole), No 1, pp. 15-20. Ministry of Education, Moscow. (in Russian) Murray Fackbakh (ed.). 1995. Environmental and health atlas of Russia. Paims, Moscow. 320 p. Goskomstat (Russian State Committee of Statistics). 1995. Statistical yearbook of Russia (Rossiyskiy statisticheskiy ezegodnik). 1995. Moscow. 978 p. Goskomstat Rosii. 1995. Agriculture in Russia (Sel'skoye khozaystvo Rosii). Moscow. 504 p. Ministry of Natural Environment and Resources Protection. 1994. The state of the environment and environment protection on the ex-USSR territory (Sostoyanie okruzayushtchey sredy i prirorookhronnaya deyatel'nost na territorii byvshego SSSR). Moscow. 160 p. (in Russian). Tcherneyev, A.M. et al. 1992. Water resources and water management in Russia (Vodnyye resursy i vodnoye khozaystvo Rosii). Drainage and Water Management (Melioratsia i Vodnoye Khozaystvo), No 9-12, pp. 2-5, Agropromizdat/Ministry of Agriculture, Moscow. (in Russian).